Mortar:
Mortar feem ntau yog siv los ua cov khoom sib txuas rau cov masonry units, xws li cib, pob zeb, lossis pob zeb ua vaj tse, los tsim cov phab ntsa lossis cov qauv.
Nws yog tsim los kom muaj zog nruab nrab, txaus los tuav cov masonry nyob rau hauv qhov chaw thiab muab ib tug ruaj, cohesive daim ntawv cog lus.
Mortar feem ntau muaj lub zog qis dua piv rau cov pob zeb thiab tsis yog tsim rau cov hom phiaj ntawm nws tus kheej.
Sij hawm dhau mus, mortar hardens los ntawm cov txheej txheem hu ua hydration, qhov twg cov cement particles hnov mob nrog dej los tsim cov qauv crystalline, ua rau nws muaj zog dua.
Pob zeb:
Pob zeb yog cov khoom siv hauv tsev siv rau hauv lub hauv paus, slabs, kab, kab teeb, thiab lwm yam khoom siv thauj khoom.
Nws yog tsim los kom muaj zog compressive siab thiab tuaj yeem txhawb nqa hnyav.
Pob zeb muaj cov ntsiab lus ntawm cov cement ntau dua thiab feem ntau muaj cov coarser aggregates (xws li gravel) piv rau mortar, uas ua rau nws muaj zog dua.
Zoo li mortar, pob zeb hardens los ntawm hydration ntawm cov cement hais tab sis ua tiav ntau dua compressive zog.
Hauv cov ntsiab lus, ob qho tib si mortar thiab pob zeb tuaj yeem ua kom tawv thiab ua tau zoo, tab sis lawv lub hom phiaj thiab lub zog sib txawv heev. Mortar yog tsim los rau kev sib koom ua ke ntawm cov masonry ua ke thiab muaj zog qis dua piv rau cov pob zeb, uas yog tsim los nqa cov khoom siv. Cov txheej txheem hardening rau ob qho tib si cov ntaub ntawv zoo sib xws, vam khom rau cov dej ntawm cov cement, tab sis qhov sib xyaw ua ke thiab cov ntawv thov txiav txim siab lawv qhov kawg ntawm lub zog thiab siv cov ntaub ntawv.
